1) power fuse
电力容断器
2) capacitor bank breaking capacity
电容器组开断能力
3) power capacitor
电力电容器
1.
Simple Analysis of The Fire Prevention in Power Capacitor;
电力电容器火灾预防浅析
2.
Study on power capacitor overvoltage;
电力电容器过电压的研究
3.
Modeling and simulation of abruption test of power capacitor and the measurement system;
电力电容器爆破能量试验及其检测系统的建模与仿真
4) electric power capacitor
电力电容器
1.
New solutions of abnormal settings of WKBCI device under-voltage protection for electric power capacitor;
WKBCI装置电力电容器欠压保护动作电压异常的新解决方案
2.
The vacuum technology of double-pumping-and-single-filling-type electric power capacitor is to combine vacuum pre-drying,vacuum drying,vacuum impregnating and pressure impregnating,namely to finish integrated heating,vacuum drying and vacuum pressure impregnating in the same vacuum container.
"双抽单注式"电力电容器真空工艺是将真空预干燥、真空干燥、真空浸渍、加压浸渍等数道工艺合并,在同一台真空罐内进行一体化的加热、真空干燥和真空压力浸渍。
3.
main specification,design outline and representative application of asynchronous generator,and lists the specification of electric power capacitor for asynchronous generator.
论述了异步发电机的分类、结构和工作原理、主要技术指标、设计要点以及典型应用,给出了异步发电机配套用电力电容器技术数据。
5) electric condenser
电力电容器
1.
Analysis of influence of electric current of wave in harmony on electric condenser;
谐波电流对电力电容器的影响
2.
It introduces the reason why the electric condenser explodes points out the general omen before the exploding of the electric condenser and describes the measures of preventing the electric condenser from exploding .
介绍了电力电容器爆炸的原因,指出了电力电容器在爆炸前的一般预兆,论述了防止电力电容器爆炸的措施。
6) power condenser
电力电容器
1.
The analysis for abnormal operation of power condenser in Shizuishan Electric Power Supply Bureau;
石嘴山供电局电力电容器的异常运行分析
2.
The basic structure and corresponding investigation test of vacuum type and whol e scope current limiting f use were introduced,which is used f or protecting single power condenser and domestic R&D independently,and the require ment of special design was given.
介绍了我国自行开发研制的保护单台电力电容器真空式全范围限流熔断器的基本结构和相应的研究性试验,给出了特殊设计的要求,以及较详细介绍了额定电压为6kV、额定电流为50A、开断电流为40kA的保护电力电容器用熔断器的设计范例。
补充资料:电力系统开断电感负载过电压
电力系统开断电感负载过电压
inductance switching-off overvoltage in electric power system
d一onl一x一tong kolduond旧ngan fuzo一guod旧nyo电力系统开断电感负载过电压(inductanceswitehing一off overvoltage in electrie powersystem)开断电感负载时由于电流在自然过零之前被强制截断导致瞬态振荡所引起的过电压。电感负载可以是空载和轻载变压器、并联电挽器和电动机等。 开断电感负载过电压的机理如图所示:电感电流i(t)在10处被截断,截流瞬间,电感负载L中储有磁场能LI02/2,负载杂散电容C中储有电场能CUoZ/2,截流后,这些能量将在LC回路中振荡,在全部能量转化为电场能的瞬间,电容上电压(即电感负载两端的电压)将达最大值u。一刃万不不Z夕万。如果电流在幅值I二处被截断,则过电压可达um二I,丫Z万。丫Z夕万为电感负载的特征阻抗。开断感性负载时的过电压(a)等值电路;(b)波形示意 开断电感负载过电压的幅值与负载的特性、断路器的截流能力有关。电感负载的杂散电容C值一般很小,特征阻抗很大,所以过电压有较高的值。断路器截流能力愈强,过电压幅值越高。如有的真空断路器在合闸电感负载时,由于过流保护动作将较大的激磁涌流截断,引起很高的过电压而将断路器损坏。由于断路器灭弧过程的分散性,开断电感负载的过电压具有统计性。 限制开断电感负载过电压的措施有:减小电感线圈的励磁电流(例如采用冷轧矽钢片),增大与电感并联的电容C(例如在变压器中采用纠结式绕组),可降低开断电感负载过电压。开断电感负载过电压的最大能量为众mZ/2,其绝对值不大,可用为防止雷电过电压的进雷器加以限制。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条